Pardon my ignorance, but aren't you adjusting the mod's positive pin from the bottom? I'm having a hard time understanding why you can't just lower it into the mod to give your atty connector some room.
I probably sanded too much. When I did it squished the top of the pin outwards too, making the (+) connection too close to the (-) on the ATTY. But the real issue is that on my Birkshire AGA T+ you can't secure the center pin, if your (+) pin on the MOD is up too high, it will push the center pin of the AGA T+ up and squish the bushing and short out. I've yet to be able to solve this. What the AGA T+ needs is some threaded nylon inserts in the top and bottom of the device and the center rod needs to be threaded so you can adjust the height. But we're talking crap Chinese design. Maybe in 100 years they'll catch up and understand what I'm taking about. So when I sanded the top of the MOD as well, the part the pin goes into (to make the AGA T+ sit flush on the top) the center pin on the MOD pushes up the center pin on the atty, squishing the bushing and shorting out. Make sense?
Also, I can't figure out how to get the bottom pin of the MOD out to sand it down to brass. This is my fault, I didn't realize the plating was so thin, I went too hard with it. But after adjusting the mod and the atty, all is well. I just have to make damn sure not to tighten the AGA T+ down too tight, or the bushing gets squashed and it shorts out.
So I also backed the center pin of the mod out (top pin) but now I have gaps in the device. It's really the fault of poor design on the atty, not the MOD. But I'm afraid to leave a battery in it overnight for fear of a fire.